Power-fan



(No Model.) I

J. A. MASON, 'E. F. MULKEY & G. W. HOUSTON.

POWER FAN.

No. 376,327. Patented Jan. 10,1888.

N. PEI'ERS. Pholo-Lflhoghpher, Washinglnn. D. C,

' UNITED STATES PATENT OFFICE.

JAMES ALEXANDER MASON, ELIJAH F. MULKEY, AND GEORGE \V. HOUSTON, OFSAVOY, TEXAS.

'POWER-FAN.

SPECIFICATION forming part of Letters Patent No. 376,327, dated January10, 1888.

Application filed July 13,1887. Serial No. 244,170. (No model.)

upon the spindle 9.

To all whom it may concern:

Be it known that we, JAMES ALEXANDER MASON, ELIJAH F. MULKEY, and GEORGEW. HOUSTON, citizens of the United States, residing at Savoy, in thecounty of Fannin and State of Texas, have invented certain new anduseful Improvements in Power-Fans; and we do hereby declare thefollowing to beafull, clear,

and exact description of the invention, such as to will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to fans which are operated by aslowly-revolvingbarrel turned by a spring or descending weight.

I 5 This invention consists in the novel construction and combination ofthe parts, hereinafter fully described and claimed, whereby the fan isactuated and kept moving at a uniform velocity.

The figure in the drawing is a side view of the complete apparatus.

A is the ceiling of the building, to which the fans are hung, and a isthe end wall. B is a light metal frame secured to the wall 2 5 forsupporting the gearing-spindles.

G is the slowly-revolving driving-barrel, secured upon spindle c andreceivingits motion from the spring D, coiled insideit, or from thedescending weight E on the end of core 6,

which is wound upon the outside of the barrel; or both spring anddescending weight may be used together to drive the barrel.

F is a toothed wheel secured upon spindle c and gearinginto the toothedpinion f, secured G is a toothed wheel of the same size as the wheel F,also secured upon spindle g and gearing into the toothed pinion H,secured upon the spindle h, all the said spindles being jour- 0 naled inthe frame so that they may revolve freely. The gearing is soproportioned that the pinion H will make fifty revolutions to onerevolution of wheel F.

I is a crank secured to one end of spindle h 5 for operating thepitman-rod J, andi is a Weight for balancing the weight of the saidpitman-rod.

K is the fan-lever, provided with the blade k and with a series ofholes, k, for the connection of the pitman-rod, so that the speed of thefan may be adjusted. The lever K is pivotally connected to the ceilingby the hinge L. K is a similar fan-lever connected to the lever K by therod Z. Additional fans and levers may be added and connected together ina series, if desired. In order to render the movement of the fansuniform aregulator is secured to any one of the fan-levers. Thisregulator consists of the weight M, which slides up and down the lever.This weight is raised automatically by the motion of the fans as thepower of the spring decreases, so that the spring then has lessresistance to overcome.

N is a ratchet-wheel secured on the spindle n, which isjournaled in theframe n, secured to the ceiling. A cord, 0, is wound upon a barrel onthe spindle n, and is secured to the weight M after passing over theguide-pulley o, journaled at the top of the fan-lever.

P is a pawl which is pivoted to the said 7c lever and engages with theteeth of the ratchet-wheel, and p is a retaining-catch for preventingthe ratchet-wheel from slipping back. At each stroke of the fan leverthe pawl P turns the ratchet-wheel one notch and winds a portion of thecord 0 upon the spindle n.

\Vhat we claim is- 1. In a power-fan, the combination of theslowly-revolving spring-barrel and the toothed gearing, the pitman -rodoperated from the revolving gearing by a crank, the fan-lever connectedto the pitmanrod, a weight sliding upon the fan-lever, and the ratchetmechanism for automatically raising the sliding weight, substantially asand for the purpose set forth. 5

2. In a power-fan, the combination of the slowly-revolving spring-barreland the toothed gearing, the pitrnan -rod operated from the revolvinggearing by a crank, the fan-lever connected to the pitman-rod, a weightsliding upon the fan -lever, the ratchetwheel provided with aretaining-catch, a pawl pivoted to the fan-lever and engaging with theratchet, the guide-pulley 0, and the cord secured to theweight,-passingover the said pulleyand 95 wound upon the ratchet wheelspindle by the motion of the fan-lever, substantially as and for thepurpose set forth. v

3. In a power-fan, the combination of the slowly revolving barrel, theintergearing I00 toothed wheel F and pinion f, the intergearmeeting thesaid fan-levers together, substaning toothed wheel G and pinion H, thecrank tially as and for the purpose set forth.

I, the pitmnn-rod J, the weight 2', balancing In testimony whereof weaifix our signatures the pitman-rod, the fan-lever K, pivoted to i inpresence of two witnesses.

5 the ceiling, adjustahly connected to the said J AMES ALEXANDER MASON.

pitman-rod, and operated by the aforesaid bar- ELIJAH F. MULKEY. rel andgearing, a weight sliding upon the fan- GEORGE \V. HOUSTON. lever, theautomatic ratchet mechanism for Witnesses: elevating the weight as thedriving power de- J. S. REED, IO creases, the fan-lever K, and the rod1, 0011- J. H. CONWAY.

